Raceway Bonding Requirements

Bonding jumpers for service raceways shall be used around impaired connections such as _____ .
a)concentric knockouts
b)eccentric knockouts
c) reducing washers
d) all of the above
See answer and applicable Code reference
The correct answer is: d) all of the above
Bonding requirements are outlined in Part V of Art. 250. As noted in Sec. 250.92(B), "Bonding jumpers meeting the requirments of this article shall be used around impaired connections, such as reducing washers ...